Brett Favre stars in ad supporting Cochran in Mississippi run-off

Brett Favre -- the Super Bowl-winning quarterback who spent his last four seasons playing for three different head coaches on three teams -- has another message for his fellow Mississippians, telling them in an ad to "stand with a proven and respected leader" by voting for Sen. Thad Cochran in the run-off for the Republican primary against State Sen. Chris McDaniel.

The ad is run by the U.S. Chamber of Commerce, one of several business groups pouring money into the campaign to re-elect the 76-year-old against his tea-party-supported challenger.

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